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It is dropped only when the last fragment is processed\nor when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received.\nHowever, the NCI device may be deallocated before that which leads to skb\nleak.\n\nAs by design the rx_data_reassembly skb is bound to the NCI device and\nnothing prevents the device to be freed before the skb is processed in\nsome way and cleaned, free it on the NCI device cleanup.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nfc: nci: rx_data_reassembly skb gratuito en la limpieza del dispositivo NCI rx_data_reassembly skb se almacena durante el intercambio de datos NCI para procesar paquetes fragmentados. Se elimina solo cuando se procesa el \u00faltimo fragmento o cuando se recibe un paquete NTF con el c\u00f3digo de operaci\u00f3n NCI_OP_RF_DEACTIVATE_NTF. Sin embargo, el dispositivo NCI puede desasignarse antes de lo que provoca una fuga de skb. Como por dise\u00f1o el skb rx_data_reassembly est\u00e1 vinculado al dispositivo NCI y nada impide que el dispositivo se libere antes de que el skb se procese y limpie de alguna manera, lib\u00e9relo en la limpieza del dispositivo NCI. Encontrado por el Centro de verificaci\u00f3n de Linux (linuxtesting.org) con Syzkaller."}], "id": "CVE-2024-26825", "lastModified": "2025-03-27T20:56:39.283", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-04-17T10:15:09.130", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/16d3f507b0fa70453dc54550df093d6e9ac630c1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2f6d16f0520d6505241629ee2f5c131b547d5f9d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/471c9ede8061357b43a116fa692e70d91941ac23"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5c0c5ffaed73cbae6c317374dc32ba6cacc60895"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/71349abe3aba7fedcab5b3fcd7aa82371fb5ccbf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7e9a8498658b398bf11b8e388005fa54e40aed81"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a3d90fb5c23f29ba59c04005ae76c5228cef2be9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bfb007aebe6bff451f7f3a4be19f4f286d0d5d9c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/16d3f507b0fa70453dc54550df093d6e9ac630c1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2f6d16f0520d6505241629ee2f5c131b547d5f9d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/471c9ede8061357b43a116fa692e70d91941ac23"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5c0c5ffaed73cbae6c317374dc32ba6cacc60895"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/71349abe3aba7fedcab5b3fcd7aa82371fb5ccbf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7e9a8498658b398bf11b8e388005fa54e40aed81"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a3d90fb5c23f29ba59c04005ae76c5228cef2be9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bfb007aebe6bff451f7f3a4be19f4f286d0d5d9c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-459"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: nfc: nci: free rx_data_reassembly skb on NCI device cleanup", "id": "2275607", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2275607"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-402", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnfc: nci: free rx_data_reassembly skb on NCI device cleanup\nrx_data_reassembly skb is stored during NCI data exchange for processing\nfragmented packets. It is dropped only when the last fragment is processed\nor when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received.\nHowever, the NCI device may be deallocated before that which leads to skb\nleak.\nAs by design the rx_data_reassembly skb is bound to the NCI device and\nnothing prevents the device to be freed before the skb is processed in\nsome way and cleaned, free it on the NCI device cleanup.\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."], "name": "CVE-2024-26825", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-04-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26825\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26825\nhttps://lore.kernel.org/linux-cve-announce/2024041702-CVE-2024-26825-408e@gregkh/T"], "threat_severity": "Low"}

{}